I only need to answer the first one, but I need you to tell me if the others are correct or incorrect, if they are incorrect please help me.

Rotation of 90 degrees counter clockwise of point A (7, 4).
Quadrant of given point: 1
Coordinates after the switch: 4, 7
Quadrant after rotation:
New coordinates after rotation:

Rotation of 180 degrees of point B at (-8, -2).
Quadrant of given point: 3
Quadrant after rotation: 1
New coordinates after rotation: 8, 2

Rotation of 270 degrees clockwise around the origin of point C at (9, -5).
Quadrant of given point: 4
Coordinates after the switch: 5, 9
Quadrant after rotation: 1
New coordinates after rotation: 5. 9

Rotation of 90 degrees clockwise around the origin of point D at (-6, -11).
Quadrant of given point: 3
Coordinates after the switch: 11, 6
Quadrant after the rotation: 2
New coordinates after rotation: -11, 6

9514 1404 393

Answer:

  A'(-4, 7) . . . . ending in quadrant 2

  check switched coordinates for C', D'

Step-by-step explanation:

The transformations accomplished by rotations are ...

  (x, y) ⇒ (-y, x) . . . . . 90° CCW or 270° CW

  (x, y) ⇒ (y, -x) . . . . . 90° CW or 270° CCW

  (x, y) ⇒ (-x, -y) . . . .  180° (either direction)

You notice that coordinates are switched and one is negated in each of these transformations. I assume that your line "Coordinates after the switch" is intended to lead you through that first step, then "New coordinates after rotation" is intended to be the same set of coordinates with the appropriate sign change.

__

1. A(7, 4) 90° CCW ⇒ (4, 7) ⇒ A'(-4, 7) . . . . ending in quadrant 2

2. B(-8, -1) 180° ⇒ B'(8, 2) . . . . ending in quadrant 1 (correct)

3. C(9, -5) 270° CW ⇒ (-5, 9)* ⇒ C'(5, 9) . . . . ending in quadrant 1

4. D(-6, -11) 90° CW ⇒ (-11, -6)* ⇒ D'(-11, 6) . . . . ending in quadrant 2

_____

* I would leave the original signs on the "coordinates after the switch". Here, you have dropped the signs. I don't know what you've been taught, but that's not how I would do it, as you can see above.

The sales tax on a surfboard is $12. What is the percent of sales tax?
surfboard is 240$


The percent of sales tax is
____%

Fill in the missing fractions

Which expressions are equivalent?

Wesley bought one T-shirt for $7.90 and another T-shirt for $12.40. What is the total amount he spent?
a. $20.30
b.$20
c.$4.50
d.$4
(brainliest included for correct answer)​

All of the following statements describe the relation shown except _____.



The diagram represents a function.
The inputs are {-1, 0, 3, 4}.
The outputs are {-2, -1, 1}.
This relation could also be represented as {(-1, 1), (0, -2), (3, 1), (4, -1)}.·∵·

can someone help me with this please.

There are about 1.61 kilometers in 1 mile. Let x represent a distance measured in kilometers and y represent the same distance measured in miles. Write two equations that relate a distance measured in kilometers and the same distance measured in miles..

answer please last one was blurry

A small motor boat can go 182 nautical miles at a steady speed in 13 hours. How far can it go in 1, 2,​ 3, 4, 5, 6, 7, 8, 9 and 10 hours.

In 12 ½ minutes, Dulce read 50 pages.
a. On average, how many pages did she read per minute?
b. On average, how many minutes does it take to read one page?

Anika had 810 songs on her phone and then she discovered Broadway. This led to 130% increase in the number of songs she had on her phone. How many songs does she have on her phone now

The population of Jacobtown is 14,312 and the population of Waltterville is 8,944. What is the combined population of Jacobtown and Waltterville?

You are selling tickets for a high school basketball game. Student tickets cost $3 and general admission tickets cost $5. You sell 350 tickets and collect $1450. How many of each type of ticket did you sell?

(04.05)Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Show your work to justify your decision.

0.8s = –6.4

A. –7.2
B. 8
C. –8

Find the number of the quadrant that contains the point (4,-3)

Jerry has a new job and earns a salary of $45,000. Victoria has a new job and earns a salary of $54,000. Jerry will receive a salary increase of $2,500 per year, and Victoria will receive a salary increase of $1,500 per year. Which equation can be used to find x, the number of years it will take Jerry to earn the same salary as Victoria?

A.) 45,000x + 2,500x = 54,000x + 1,500x

B.) 45,000x +2,500 = 54,000x + 1,500

C.) 45,000 + 2,500x = 54,000 + 1,500x

D.) 45,000x + 2,500x = 54,000x + 1,500

PLEASE, I NEED HELP! I’M DOING AN ASSIGNMENT AND ITS DUE NEXT TUESDAY!

Which relationship could be the one shown on the graph?

On a coordinate plane, a line goes through points (2, 19) and (4, 38).
Misaki had 2 identical pencils that weighed a total of 19 grams, where x is the number of pencils and y is the total weight of the pencils.
Misaki wrote 2.5 pages in 20 minutes, where x is the number of pages and y is the time in minutes.
Misaki ate 5 cookies each with 65 calories, where x is the number of cookies and y is the total number of calories.
Misaki spent 47.5 minutes working on 5 math problems, where x is the number of minutes and y is the number of math problems.

The length of the Titanic was 882 feet. Porter's history class is building a model of the Titanic. The model is 1/100 of the actual length of the ship. How long is the model?

Select all of the rational numbers. (there can be more than one)

3^-1
square root of 12
square root of 9
-0.25
pi
0.6 (the six has a line over it)

Geri used coupons at the grocery store and received a discount of $40.94. Once her discount was subtracted, the final cost of her purchases was $122.80. What was the approximate percent decrease in the price of her groceries due to the coupons?

The total weight of the golf balls from Julio’s golf bag was 273 grams. If each golf ball weighed 45.5 grams, which graph shows the weight of golf balls as it relates to the number of golf balls?

Weight of Golf Balls
Number of Golf Balls
Weight (in grams)
1
45.5
2
?
3
?
?
273

On a coordinate plane, the x-axis is labeled number of golf balls and the y-axis is labeled weight (in grams). A line goes through point (1, 50) and (6, 275).

On a coordinate plane, the x-axis is labeled number of golf balls and the y-axis is labeled weight (in grams). A line goes through point (10, 50) and (50, 300).

On a coordinate plane, the x-axis is labeled number of golf balls and the y-axis is labeled weight (in grams). A line goes through point (50, 1) and (250, 5.5).

On a coordinate plane, the x-axis is labeled number of golf balls and the y-axis is labeled weight (in grams). A line goes through point (50, 9.9) and (300, 50).

uuhhh help me out please?

Is the slope
A) Positive
B) Negative
C) Zero

Isaac applied the steps below to find the product of (4.2)(–5.4). Step 1: (4.2)(–5.4) = (–5.4)(4.2) Step 2: = (–5.4)(4) + (–5.4)(0.2) Step 3: = (–21.6) + (–1.08) Step 4: = –22.68 Which step shows where Isaac applied the distributive property? Step 1 Step 2 Step 3 Step 4 will mark BRAINLIEST FOR QUICKEST CORRECT ANSWER

Determine whether the graph represents a proportional relationship. (4 points)
A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 10. Four points are shown on the graph on ordered pairs 0, 0 and 1, 3 and 2, 6 and 3, 7. These points are joined by a line. The label on the x-axis is Number of pans. The title on the y-axis is Number of cakes.
Group of answer choices
A. Yes, it is a proportional relationship because the graph goes through the origin
B. Yes, it is a proportional relationship because the graph is a straight line
C. No, it is not a proportional relationship because the graph is not a straight line
D. No, it is not a proportional relationship because the graph does not go through the origin

A number 5 is quadrupled and then decreased by f

What is the solution to the proportion a/b = c/d?

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